\documentclass{article}
\usepackage{ifthen}
\usepackage{epsfig}
\usepackage[utf8]{inputenc}
\usepackage{newunicodechar}
  \newunicodechar{⁻}{${}^{-}$}% Superscript minus
  \newunicodechar{²}{${}^{2}$}% Superscript two
  \newunicodechar{³}{${}^{3}$}% Superscript three

\pagestyle{empty}
\begin{document}
\[ bitreservoir = nEffChannels*6144 - (bitrate*framelength/samplerate) \]
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\[ 1000 * fs / (dsf * sr) \]
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$N\_FRAMES$
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\[ N\_FRAMES = 44100 / 2048 = 21.5332 \]
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$N\_BITS\_PER\_FRAME$
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\[ N\_BITS\_PER\_FRAME = 8000 / 21.5332 = 371.52 \]
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\[ N\_BITS\_PER\_FRAME = 32000 / 21.5332 = 1486 \]
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$ 2^{scalefactor} $
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$ value = value\_m * 2^{value\_e} $
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$\pm 32768 $
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$ \pm 1$
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$ gain = \sqrt{ \frac{nrgRef}{nrgEst} \cdot (1 - noiseRatio) } \hspace{2cm} noise = \sqrt{ nrgRef \cdot noiseRatio } $
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$ a = a\_m * 2^{a\_e} $
\pagebreak

\end{document}
